Extending Jaw (Ex)

A giant dragonfly nymph can extend its jaws
with surprising speed. Not only does this extend the nymph’s
reach with its bite attack, but during the surprise round, a
nymph gains a +4 bonus on attack rolls with its bite.

Giant dragonflies lay clutches of eggs in swampy terrain
or areas of standing water. Their young, called nymphs,
voraciously eat carrion and small prey, growing and
maturing rapidly until they sprout fully functional wings
and become adult dragonflies.